Gas boiler Navien Ace. Characteristics. Is it worth buying?

The high-tech Korean gas boiler Navien is a leader in the heating equipment market. Units with a wide range of power are produced for heat supply to houses with a main gas subscriber station. By design, they can operate on liquefied gas. The model range allows buyers to make a fine selection of equipment based on real technical conditions and financial capabilities. They have an impeccable minimalist design. The elegant appearance of the boiler fits into kitchens of any size and configuration.

Features of operation of Navien boilers

Navien - domestic double-circuit boilers with an open or closed combustion device are used for heating residential and public premises and heating water for domestic and technical purposes.

The boiler control is Russified and adapted to the real operating modes of Russian engineering systems.

The APS mechanism ensures a stable fuel combustion process with minimal consumption. The blower fan for supplying air and creating a working pressure of the gas-air mixture has different speed operating modes and allows the operator to control the rotation speed for complete combustion, preventing condensation.

Navien boiler equipment:

• Circulation pump;
• universal heat exchangers for the heating circuit and DHW system;
• security automation;
• expansion tank;
• selection of heating mode and timer to stop the unit;
• Navien boiler, installation and operating instructions.

The advantage of using a heating unit is that a burner with pre-mixing of the gas-air mixture has a modulation range of 30-100%.

Model range of Navien boilers with characteristics

Navien gas boilers are designed for heating and hot water supply of private houses with an area of ​​30 to 300 m2. The maximum water temperature is 80°, which meets the requirements of most plumbing fixtures. Navien devices compare favorably with similar samples from other manufacturers. Main advantages:

• Ability to work at low gas pressure.
• Undemanding to the pressure in water pipes.
• Increased circulation when the temperature drops to +5°, protecting the system from freezing.
• Built-in voltage stabilizer capable of correcting deviations up to 30%.
• Prices for Navien equipment are lower than for similar products from European companies.

There are boilers with wall-mounted and floor-mounted installations, designed respectively for smaller or larger areas. The design of different models provides for combustion with supercharging (turbocharged) or with natural air draft (atmospheric), which is ensured by a closed or open type of combustion chamber. They are represented by the Navien Turbo and Navien Atmo series.

In addition, there are two- and single-circuit models designed to provide heating and hot water supply or only for heating rooms.

The Navien equipment line includes the following models:

• Prime. This model range has the maximum configuration; the equipment fully complies with modern ideas about high technology in any industry. Prime double-circuit boilers have all the innovative developments of today. The power range is between 13–35 kW. In total, the line includes 5 standard sizes, differing in power and, accordingly, in size. The devices have a full range of functions; operating parameters are displayed on a liquid crystal display. The price range is between 35–45 thousand rubles.
• Deluxe. Devices in this series have almost the same parameters as the Prime line. The only difference is the absence of an LCD display, but the circuit uses an air pressure sensor (denoted APS in the diagrams). The presence of this device allows you to accurately dose the air stream, ensuring an optimal and economical combustion mode. There is a wide selection of models, ranging from 10 to 40 kW. Prices for devices are in the range of 23–35 thousand rubles.
• Ace. The most common and preferred line of heating devices is Navien. It has an optimal price-functionality ratio. Reliable and high-quality devices have several operating modes (manual, automatic, timer). All installations are fully adapted to Russian conditions and have proven themselves in operation. There are boilers with open and closed combustion chambers (Ace Ftmo and Ace Turbo), connecting the boilers is simple and does not require significant labor costs. You can buy devices from this line for 20–30 thousand rubles.

Please note that Navien recently announced the discontinuation of the Ace range of boilers.

• Steel (GA/GST). The line provides only room heating (single-circuit devices). There is a wide choice of power - from 11 to 40 kW, narrow functionality allows you to get a device that is most specialized for performing its tasks. Reliability increases, reducing the number of structural elements makes it possible to increase strength and resistance to temperature and pressure changes. The design uses durable materials, in particular stainless steel. Devices from the GA or GST lines can have a dual-circuit design and are mainly manufactured in a floor-standing design with high power. The price range depends on the configuration and power of the device and is in the range of 20–56 thousand rubles.
• SmartTok. A device that can be controlled remotely using a smartphone. This method of temperature control allows you to change the microclimate in the rooms as comfortably as possible without leaving them, and optimally adjust the operating mode according to your own feelings. There are three operating modes; an outside temperature sensor is used to adjust the heating depending on weather changes. There is a voice control mode. The price of devices in this line ranges from 30 to 50 thousand rubles.

Please note that equipment prices depend on the region and may increase.

Specifications

NAVIEN Ace-16K Turbo

Gas wall-mounted 16 kW is a compact design of a gas boiler for autonomous heating and hot water supply in houses with an area of ​​up to 98 m2 with a remote control unit. Net power is 16 kW, average efficiency is 86%, and the highest fuel consumption is up to 1.33 m3/hour. DHW capacity - up to 5.5 l/min at t=35C.

Important ! The model is equipped with a closed firebox with an outdoor cold air intake.

Deluxe Coaxial 16K

This is a wall-mounted model with a closed combustion chamber and two heating circuits. The turbocharged fan changes speed based on a signal from the built-in air sensor, which ensures complete combustion of fuel in the firebox, which reduces heat loss through flue gas emissions and increases the efficiency of the installation to 91%.

Benefits of Deluxe Coaxial 16K:

• High performance for hot water supply and heating;
• low contamination of the coolant in the heating system;
• low maintenance and repair costs;
• room temperature control;
• Russified control panel with a large LCD display;
• optimal balance of the gas-air mixture;
• innovative mode of modulation of the gas burner device;
• high-quality warranty service;
• easy setup of the Navien boiler;
• low cost of chimneys and gas transmission systems.

Draining water from the boiler and hot water supply system

If the boiler is not planned to be used for a long time (especially in winter), it is recommended to drain all water from the heating and hot water circuits. What to do:

1. The unit is de-energized and the gas valve is closed.
2. The valves of the heating system (2 pieces) and cold water are closed.
3. The tap that is usually used opens (above the sink, for example) and drains hot water from the system.
4. The tap in the DHW system is closed.
5. A plug is opened at the bottom of the housing and water from the heating is drained.

Draining the water may be necessary during system maintenance.

Operating instructions for Navien gas boilers

This document is a mandatory appendix to the technical documentation provided by the manufacturer when registering the device in the retail chain. Operation is carried out from the control panel, the model offers many modes of use.

"Navien" mounted boiler operating instructions, structure and description of functions:

• Power (POWER) - on / off;
• combustion (COMBUSTION) displays the combustion process;
• pump (PUMP) status of the network circuit circulation pump;
• hot water (HOT WATER) - water heating temperature;
• low level (LOW LEVEL) - emergency water level in the circuit;
• overheating (OVERHEAT) – unacceptably high water temperature;
• sensor (SENSOR) – sensor malfunction;
• reset (MISFIRE) mode on the panel to factory settings.

Types of wall-mounted boilers

Atmospheric gas boiler NAVIEN ATMO 24-AN

There are three types of wall-mounted heating devices of this class on the domestic market:

• Navien atmospheric (open) boiler;
• turbocharged wall models;
• condensing devices.

Each of these positions requires separate consideration.

Atmospheric gas boilers

Units of this type have an open combustion chamber. Represented by the Navien Atmo model. It is intended for operation in conditions of uneven gas pressure (its differences can reach 8-17 mbar) and the coolant itself - from 0.6 to 8 bar. The power of the offered units varies from 13 to 24 kW. At an operating temperature of 80°C, the coolant heats hot water to 60°C with a production volume of 10 liters per minute. To remove combustion products, they are equipped with standard chimneys.

The heating circuit in atmospheric boilers is made of copper, and the heat exchanger body is made of stainless steel.

Turbocharged units

Turbocharged boiler Navien Deluxe 10 Coaxial

The group of units of the second type (with an isolated combustion chamber) includes models of the following series:

• Prime, represented by boilers with a capacity of about 13-35 kW;
• Deluxe, whose declared power ranges from 13 to 40 kW;
• modern Smart TOK models with an indicator of 13-35 kW.

Portions of air are forced into the isolated combustion chamber - they are pumped through a special fan installed in a coaxial pipe. Thanks to this, units with a Coaxial design have a higher efficiency, sometimes reaching a record figure of 93%. Gas boilers from the Navien Deluxe series are able to withstand significant changes in supply voltage, as they are equipped with a built-in stabilizing device. In addition, they have the option of automatically maintaining the temperature of the media at a level not lower than the “cooling point” (6-9 degrees).

Condensing boilers

Condensing gas boiler Navien NCN 40KN

The third type of Navien gas boilers is represented by samples of equipment from the NCN and NCB series. Due to additional heating of the carrier with the heat of the condensate, their efficiency was increased to 99%. The functionality of these units is even higher than that of turbocharged boilers - the controller built into them allows you to set temperature parameters for a week in advance.

The Navien NCN product series includes four varieties with power from 22 to 40 kW, and NCB has the same number of products with ratings of 24-40 kW. The water in them is heated to 65°C, and the coolant circulating through the pipes is heated to 90°C. These units are able to withstand media pressure up to 10 Bar.

The air supply in equipment of this class is organized through a coaxial or conventional chimney.

Starting the boiler

After all installation work has been completed and pressure testing has been carried out, the first commissioning start-up of the boiler equipment is carried out. All work is carried out by service center workers with the preparation of appropriate documents, which in the future will preserve the manufacturer’s warranty obligations.

When starting the Navien boiler, the instructions must be followed impeccably. Sequence of work:

1. The circuits are filled with water through the unit’s make-up unit, built into the structure, with a special tap at the bottom next to the tap water inlet.
2. Monitor the pressure gauge; when the pressure rises to 2.0 atm, close the tap.
3. Remove air pockets. At the first start, it is performed in manual mode, and at subsequent starts, through an automatic system. They start the process from the most distant battery, opening the Mayevsky tap, and alternately go through all the points of the heating circuit.
4. After etching the air plug, the pressure in the circuit will drop, so re-filling will be required.
5. Discharge the air mixture from the circulation pump.
6. To turn on the unit, press the “Power” button.
7. The electric ignition will work and the unit will start, after which it is necessary to adjust the temperature regime.

Other features of Navien boilers

All models of Navien double-circuit gas boilers have a number of advantages and disadvantages. To identify them and make a choice, it is worth understanding the model ranges of this brand. To do this, it is worth studying the characteristics of the models and, of course, reading reviews.

Navien gas heating equipment is available in three colors:

• gold,
• silver,
• white

The main advantages are aesthetics and compact size. These advantages are noted in many reviews. Of course, this allows boilers of this brand to fit into almost any interior .
In addition, a certain model range is ranked according to the power of all devices, which can range from 9 to 35 kW. Also, many consumers in their reviews indicated another advantage of gas boilers of this brand - a special system that prevents the coolant from freezing. The design includes a separate sensor for these purposes, which is responsible for starting the pumps precisely at the time when the room temperature drops to 10 degrees Celsius.

Settings

“Navien” is programmed for winter (heating and DHW) and summer (DHW) operating modes - with the “Snowflake” and “Sun” icons. The network temperature is adjusted on the LCD remote control when the “radiator” icon on it is lit. In some options, the “Heating Mode” is started, in others the knob is turned. A flashing LED records the set water temperature.

If the icon just lights up without pulsating, the actual temperature in the network is displayed. By selecting the icon, use “+” or “-” to increase or decrease the temperature. After a couple of seconds the LED will stop flashing and show the actual temperature. They regulate the heating temperature from 40.0 C to 80.0 C. If it is set incorrectly, an error code will be displayed.

Note! The DHW temperature is adjusted in the same way, only on the remote control there are pictograms with a tap, the range is from +30 to +60 C.

Is it possible to regulate the power of the circulation pump in the Navien 24 boiler? if so, how?

Is it possible to regulate the power of the circulation pump in the Navien 24 boiler?
if so, how? Best answer

if there is a switch on the pump itself (usually a 3-position switch), then it’s possible. . if the pump does not have it, then it is single-speed. .

Alexander KudryashovStudent (140) 6 years ago

Thank you. Is it possible to put extra? pump? Where? for supply or return

oktavius ​​111 Sage (17735) possible. . where to put it makes no difference. . still circulation in a closed system. . at least in the middle, between the batteries. . Usually they are placed where space allows. .

Tips and recommendations for operating the Navien boiler

The main advice from experts regarding the safe operation of the boiler:

1. The room where the unit is located must have good ventilation.
2. The unit must have a separate independent connection to the electrical network.
3. The boiler must operate in a fully assembled and protective housing.
4. The user is prohibited from independently repairing the gas equipment of the boiler.
5. The boiler must undergo an annual inspection by representatives of Gorgaz.
6. The boiler owner must periodically check the joints of the boiler and the gas pipeline for leaks with a soap solution.

Additional Information. If leaks occur, immediately turn off the gas valve, ventilate the room and call the emergency gas service.

Navien gas boilers have been used by Russian consumers for a long time. They have rightly earned the trust of customers. The lightweight layout with the widest range of modern water heating functions allows you to choose these models from a large list of offers on the heating equipment market.

The range of gas boilers offered by our stores today is very wide. Choosing the most suitable model, in terms of reliability and quality at the lowest price, is a very difficult task. Among the manufacturers of such equipment, the South Korean company Navien occupies not the last place. Giving the potential buyer the necessary information about what a Navien gas boiler is is the purpose of this article.

Filling the boiler and heating system with water

Error code 02 indicates that there was an attempt to start the boiler, but there is no water in the system, or there is not enough water. What to do:

1. The appliance is unplugged and the gas supply is cut off.
2. At the bottom of the boiler, among many elements, you need to find a make-up valve. Turning it counterclockwise opens it, and turning it clockwise closes it.
3. When the tap is open, monitor the pressure gauge. You need to close the tap when it shows 1.3 - 2 bar.
4. Now the boiler is connected again, gas is supplied and the start is made.

Don't worry if error 02 appears again. This may be caused by the fact that after bleeding the air (which is automatically done at startup), the water level is again insufficient. The filling operation must be repeated.

What is the operating principle of Navien boilers?

The operation of Navien boilers is based on the same principles as similar devices from other manufacturers.

Composition and types of boilers

Each such device includes the following main components:

• gas stove;
• gas supply control mechanism;
• heat exchange device.

In a single-circuit modification, hot water immediately enters the heating system of the house. Double-circuit models include an additional water heating circuit for the home hot water supply system (DHW). When this circuit is turned on, the operation of the heating system is suspended.

Exhaust gas removal

Gas combustion chambers in boilers are open (atmospheric) and closed (turbocharged). In atmospheric models, smoke independently leaves the room through the chimney. In turbine engines, exhaust gases are removed by force using a fan through a pipe through the outer wall of the house.

Important! In rooms where a gas boiler is installed, constant exhaust ventilation is required. This is especially important for atmospheric models.

Gas-burners

One of the main components of a gas boiler is, of course, a gas burner. As a rule, modern models are equipped with modulating burners. They allow you to modulate the flame, controlling the gas supply depending on the need to adjust the air temperature in the premises or water in the hot water system. When the device is equipped with an automatically adjustable modulating burner, the heating system will accurately maintain the set temperature.

Control and protection systems

When there is a power failure, the gas boiler stops working; when electricity appears, it starts automatically.

If the gas supply stops, the automation will close the solenoid valve, which will block the possibility of fuel entering the device. In such situations, it is only possible to open the gas supply to the boiler manually.

Modern models have energy saving and freeze protection capabilities. The water temperature is controlled by sensors that ensure automatic heating of the coolant when its temperature drops to a set value.

Design and main elements of the boiler

It is important to know your boiler in order to carry out basic maintenance. Although the model may vary from model to model, the main elements can be found in the case:

• combustion chamber;
• heat exchanger;
• expansion tank;
• gas burner;
• circulation pump;
• Control block.

Particular attention should be paid to the design of the lower part of the case, since this is where the inputs and outputs of the circuits are connected, and other important parts are located.

Navien boiler diagram

Closer to the wall there are 4 connecting pipes:

1. Feed input.
2. Return inlet (with safety valve).
3. Hot water outlet.
4. Cold water.

Next is a small gas supply pipe.

In front of the return inlet there is a hot water filter, and even closer there is a drain plug.

In front of the DHW outlet there is a make-up tap, through which the system is filled with water.

The principle of operation of the anti-freeze system. When the temperature in the pipes drops below -10°, the pump automatically turns on, which circulates the coolant and prevents it from freezing.

If the temperature continues to drop and it reaches -6°, the burner is activated, which heats the water to +21°.

Characteristics from the technical side

In our market, the Navien company offers double-circuit wall-mounted gas boilers with the following characteristics:

1. Combustion chambers of any type - both open and closed.
2. The power range of manufactured devices allows heating rooms with an area of ​​30 to 400 square meters. m.
3. The dual-circuit modification makes it possible to heat water for the domestic hot water system.
4. Heat exchangers are made of stainless steel.
5. Both liquefied and natural gas can be used to operate boilers.
6. The amount of water produced for the hot water system is determined by the power of the device. For example, a 13 kW device produces water in a volume of up to 11 liters per minute, and with a power of 30 kW - about 17.
7. The electronic control unit has the function of protecting the device from voltage surges in the electrical network.
8. Most models of heating boilers are equipped with a remote control unit that has the following capabilities:
9. the unit displays data on the set temperatures of heating water, hot water in the DHW system and indoor air;
10. the display provides information about any problems that have arisen in the operation of the units;
11. buttons on the unit turn the boiler on and off, set the temperature;
12. The built-in air temperature sensor provides information for regulating the gas burner.

The delivery package for each Nevien gas boiler includes an instruction manual, which describes in detail the rules for working with the control unit. More detailed technical characteristics of the device are also given there.

Peculiarities

The Navien ATMO 24AN model has the following overall dimensions - 430x720x340 mm (WxHxD), while the weight is 27 kg. Mounted on the wall, it is convenient and saves space in the room.

Operating principle and main parameters.

The convection type of device involves the generation of heat by combustion of gas, while the boiler operates on natural gas (methane, flow rate 2.47 cubic meters per hour) and liquefied gas (propane-butane mixture, flow rate 2.15 kg/hour).

To obtain the declared power of 24 kW, the pressure of natural gas must be at the level of 8-18 mbar, and liquefied gas - 23 mbar (permissible), reducing these parameters will result in a decrease in thermal power. ExpertKotel.ru reminds that most often in domestic networks the pressure is 12-20 mbar. The heater efficiency, at these values, is at a good level and amounts to 86%.

Primary heat exchanger.

In the case of Navien ATMO 24AN, copper is used, its advantages are good heat transfer, compactness, low weight, and most importantly, corrosion resistance.

Circulation pump

necessary for the circulation of coolant (water, antifreeze) through the heating circuit, it is a mandatory component of a closed-type heating system, in our case the pump is included.

Expansion tank

is designed to compensate for the expansion of the coolant in the pipes when heated and releases it back into the system when cooling. This makes it possible to maintain constant pressure in the circuit.

Fuel economy

Auto-ignition

(Electric ignition) allows Navien ATMO 24AN to start and extinguish the burner according to an algorithm when necessary, which saves fuel.

Management and control

The Navien ATMO 24AN gas boiler is electronically controlled and equipped with a display. The advantage of the electronic system is that it does not require the constant presence of a person and allows significant fuel savings (as described above), the disadvantage is that it is more complex than a mechanical one and depends on voltage drops in the network (it can fail during surges). The kit includes a remote control.

Thermometer and pressure gauge

. A thermometer is necessary to monitor the temperature of the coolant in the boiler, and a pressure gauge shows the pressure of the coolant; this is an important parameter, because exceeding it can lead to breakdown of individual parts or the system as a whole.

Protection systems

Gas control

- this useful burner function automatically stops the gas supply if the flame goes out for any reason.

Safety valve

"Navien ATMO 24AN" protects the system from increasing water pressure in the circuit above the maximum permissible norm.

Air vent

. An important element of the safety group, when the pressure in the heating system increases, the air vent automatically releases excess air, usually working together with a safety valve.

Coolant freeze protection

independently turns on the burner for a short time when the water temperature drops to a critical level and there is a risk of heating defrosting. ExpertKotel.ru reminds that this requires the supply of electricity and gas.

Coolant overheat protection

will turn off the burner if the water temperature reaches abnormal values.

Connection

• The connecting size for the gas pipe is 1/2″.
• Hot water supply - 1/2″.
• To connect the heating circuit - 3/4″.

For power supply, a single-phase network (220 volts) with a pure sine wave and grounding is required.

Autonomous operation

When using an uninterruptible power supply, “Navien ATMO 24AN” will function even if there is a power outage (example in the table below). This is useful when you need to protect the system from defrosting in winter, or simply maintain heat and hot water supply.

Installation features

Before purchasing a gas boiler you must:

1. Prepare the installation site. Atmospheric apparatus requires a separate room, at least 2x2 m in size, with exhaust ventilation.
2. The device must be powered from a stabilizer connected to a circuit breaker or outlet that has an emergency shutdown feature.
3. The boiler body must be grounded, so you need to connect a grounding wire to the installation site.
4. The wall where the device will hang, if it is flammable, must be sheathed with non-flammable material.

After purchasing a boiler, the difficult task of connecting it arises. The factory operating instructions recommend engaging an authorized service center specialist for this.

But if you have skills in working with pipes and taps, you can try hanging it on the wall and connecting the device yourself. The factory instructions describe this in detail.

But we must not forget that in any case, you will need to call a gas service specialist to conclude a service agreement and obtain a special permit to operate gas equipment.

Important! Unauthorized connection of gas to the boiler may result in penalties and even criminal prosecution.

Price range

Prices for gas double-circuit boilers Navien Ace range from 26 thousand rubles. (Navien Ace 13K Atmo), up to 32 thousand rubles. (Navien Ace-24K Turbo). It is necessary to take into account that these amounts constitute only the cost of the boiler itself, without delivery, installation, warranty agreement and other additional costs.

Stores only carry out sales, and warranty repairs and maintenance are carried out by service centers, an agreement with which is concluded and paid separately. Many buyers believe that the warranty is automatic upon purchase, but this is a misconception.

NOTE!

The Ace series has been discontinued. It is still possible to purchase such units, since a lot of them were brought to the regions of Russia. But the possibility of warranty service must be clarified immediately, otherwise you may find yourself in an unpleasant situation.

Advantages and disadvantages of Navien boilers

A careful study of models from different companies allows us to conclude that the Navien gas boiler has many advantages over competitors’ products. Namely:

• good quality at a relatively low price;
• a large number of service centers for their maintenance;
• the company's enterprises have strict quality control mechanisms;
• heat exchangers are made of high-quality stainless steel, which ensures a long service life;
• the presence of an air temperature sensor built into the remote control unit;
• protection against voltage surges in the electrical network;
• very large selection of models;
• inexpensive spare parts.

There are noticeably fewer disadvantages:

1. noises and dull knocks during operation;
2. Only original spare parts are suitable for replacing failed parts.

Possible malfunctions and ways to eliminate them

Navien error codes:

• 01 – overheating (check if the pump is working and if the filter is clogged).
• 03 – no gas (check if the tap is open).
• 04 – false flame signal (check the serviceability of the gas valve, replace the electrodes or board).
• 05 – 06 – Short circuit on the temperature sensor or open circuit.
• 09 – problems with the fan.
• 10 – problems with smoke removal (check the operation of the fan, whether the chimney is clogged, whether the fan pipes are connected correctly, gusty wind could also be the cause).
• 013 – Short circuit on the OM flow sensor.

If the boiler does not give any errors, but works much worse, the reason may be a clogged filter or an airy system.

Navien boilers, like any other equipment, require good care and proper handling. Regular checks and service control will help avoid breakdowns.

Installation of an internal electrical network is an important stage in the arrangement of a new building. Electricity in a private house with your own hands - how to do the wiring correctly? Read the advice of professionals.

For recommendations on making a gas burner for a boiler with your own hands, read the link.

Customer Reviews

1. Nikolai V. “When choosing a gas boiler for myself, I read a bunch of reviews about these units. I liked the reviews on the Navien gas boiler. Apart from complaints about periodic dull tapping, there is almost nothing about other shortcomings. Well, I decided to take Navien. I’ll say it briefly – I don’t regret it.”
2. Andrey O. “I took Navien Deluxe Coaxial 20k for my dacha. The area of ​​the rooms is about 80 square meters. m, there is enough heat to spare even at minus 25 outside. Now you don’t need to heat the stove or chop wood – it’s beautiful! It makes a little noise, but I hung it in the kitchen - if the door is closed, you can hardly hear it in the bedrooms.”
3. Oleg Kh. “I purchased the Navien Deluxe on the advice of a colleague. The first thing I immediately liked about this boiler was its price. Compared to other companies, the difference is noticeable. Well, of the functions, I am most pleased with the heating mode with temperature control in the rooms. I haven’t noticed any shortcomings yet.”

Pros and cons of Navien gas systems

A gas boiler for heating a private house Navien has a number of undeniable advantages:

• Frost protection.
  When the indoor temperature drops, the system automatically starts the frost protection mode. When the water temperature drops below 10 ºС, the circulation pump is turned on, ensuring constant circulation of the coolant in the heating system. When the temperature drops below 5 ºС, the burner lights up and the coolant warms up to 22 ºС.
• Availability of a turbocharging system. The turbocharging fan in such boilers is located under the combustion chamber and changes its rotation speed according to the counter. It is directed from the APS air pressure mechanism. It turns out that air enters the combustion chamber in a volume proportional to the volume of supplied gas. Only such an Ice Turbo system with an installed fan and APS mechanism makes it possible to ensure complete combustion of gas with minimal heat loss.
• The presence of a stainless steel heat exchanger. Unlike copper, it has high oxidation resistance. This nuance significantly extends the life of Navien wall-mounted gas boilers. However, even taking into account the high resistance of stainless steel to rust, such heat exchangers are used in boilers extremely rarely, since they have a much lower level of thermal conductivity compared to a copper heat exchanger. And only Navien ace Turbo wall-mounted gas boilers have a simulated turbocharging system to increase the efficiency of the entire system.
• Long-term and safe operation of the system in conditions of constant external failures. The SMPS function found in the microprocessor protects the system from damage during power outages. Only Navien boilers manage to function normally under conditions of significant fluctuations. This extends their service life significantly compared to other heating devices.
• The ability to heat the room and heat water in conditions of low pressure in the system.

The automated mobile heating control system, thanks to the presence of built-in temperature sensors, makes it possible to significantly save on gas consumption.

Design features of Navien gas boilers

Manufacturers of Navien produce devices of different capacities, floor-mounted, wall-mounted and with a hot water supply function. They can be connected both to a centralized line and to gas cylinders. The units have a modern appearance that allows them to fit into any home interior. Navien gas boilers are equipped with a safety group, which includes:

• modulating turbocharging;
• protection against coolant freezing;
• SMPS chip that protects against power surges;
• temperature sensor control panel, which allows you to adjust the operation of the unit to certain circumstances.

The most common model of Navien gas units is Deluxe, so let’s look at them in more detail.

What is the outlet temperature of the gas boiler?

In modern gas

boilers,

the flue gas
outlet
temperature is low: 100-120°C. At the moment of gas combustion, carbon dioxide, water vapor, sulfur dioxide and many other chemical compounds are formed, which cool down as they rise up the chimney.

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Setting up a Navien gas boiler

Next, we’ll look at how to set up a Navien Deluxe gas boiler with your own hands. Manipulations are carried out using a remote control with a built-in room temperature sensor.

Heating settings

To set the heating mode and set the coolant temperature, hold down the button with the image of a radiator until the same icon appears on the screen. If the “radiator” picture blinks, it means that the set coolant temperature is displayed on the screen. If the symbol does not flash, the actual water heating level is displayed.

Navien wall-mounted gas boilers - model range, pros and cons

How they work and what are the advantages of Navien Ace gas boilers

To set the desired temperature, use the “+” and “-” buttons with the “radiator” icon flashing. The possible range is from 40ºC to 80ºC. Once the temperature is set, it will be automatically saved. The “radiator” icon will blink for a few seconds, after which the actual temperature of the coolant will be displayed on the screen.

Heating with air temperature control

To set the desired air temperature in the room, you need to hold down the “radiator” button until the image “house with thermometer” appears on the screen. It means “Heating with room temperature control” mode.

When the “house with thermometer” symbol is flashing, the desired room temperature is displayed on the screen. When the icon is not flashing, the display shows the actual room temperature.

When the icon is flashing, using the “+” and “-” buttons, the desired level of heating in the room is set, adjustable in the range of 10-40ºC. The temperature is then automatically saved and the icon stops flashing.

Setting the hot water temperature

To set the hot water temperature, you need to hold down the “water tap” button until a similar flashing symbol appears in the right corner. You can then set the desired hot water temperature between 30ºC and 60ºC. The settings will be automatically saved and the “water tap” symbol will stop flashing.

Note! In the “Hot water priority” mode, the water heating temperature is regulated differently.

Now let’s look at how to configure the Navien Deluxe gas boiler in the “Hot water priority” mode. To activate it, hold down the “water tap” key until the “faucet and light” symbol appears on the screen. Now you can set the desired temperature using the “+” and “-” keys. While the DHW temperature is changing, the “water tap” icon should flash above the “tap and light” symbol.

The “Hot water priority” mode involves preparing a supply of water at a given temperature even if it is not in use. It allows you to supply heated water to the consumer a few seconds earlier.

Away Mode

The “Away” mode means the gas boiler operates only for preparing hot water. To switch the unit to this mode, you need to press the button that shows an arrow and a water tap. The “water tap” symbol that appears on the screen means that the “Away from Home” mode is set. The actual temperature in the room is displayed next to it.

Note! This mode is convenient for use in the warm season, when hot water supply is necessary, but there is no need for heating.

Setting the Timer mode

The “Timer” mode is necessary to set the time for stopping the operation of the gas boiler within the range from 0 to 12 hours. The unit will work for half an hour, turning off for the specified interval.

To set the “Timer” mode, hold down the “radiator” button until the “clock” symbol appears. When the icon is flashing, use the “+” and “-” keys to set the interval time. The set value is saved, the “clock” stops blinking, and the display shows the actual air temperature.

Frequent errors and malfunctions of Navien Ace

Gas heating appliances from Navien are equipped with an electronic control system, which is also famous for its reliability. All malfunctions in the operation of the heating device are displayed on the liquid crystal display in the form of a digital code. Each code corresponds to a malfunction of one or another element of the heating unit, or a deviation of any operating parameters. There are a total of 13 digital error codes.

Error E01

This error can occur in a Navien Ace gas boiler if the boiler for some reason experiences overheating. In most cases, this occurs due to the failure of the centrifugal pump, which circulates the coolant in the heating circuit. The pump may not rotate if:

• the rotor is jammed (soured);
• the electronics that control the pump have failed;
• The stator windings burned out.

The last reason for pump failure entails the replacement of this boiler element. Also check the installation of the check valve. Perhaps it was placed on the wrong side.

Error E02

This error most often appears due to low pressure in the heating circuit. The pressure may drop due to a leak. If a leak is not detected, then it is enough to refill the system with water, and this error will be eliminated. In some cases, this error may also be associated with incorrect operation of the circulation pump. To make sure that the pump is working correctly, you need to unscrew the plug on the back of the pump with a curly screwdriver and visually determine whether the shaft is rotating or not.

Also, error E02 k can occur when for some reason the heating circuit taps are closed, or when there is air in the heating system. Air is removed from the system using special valves.

This deviation in the operation of the Navien Ace gas boiler can also occur due to improper functioning of the flow sensor. The operation of this sensor is checked using a multimeter. If error E02 occurs, it is also worth checking the dirt trap, which is traditionally installed in front of the boiler.

Error E03

This error indicates that for some reason there is no flame in the burner of the Navien Ace boiler. This malfunction may occur due to a shutdown or extremely low gas pressure. You also need to visually verify that there really is no flame on the surface of the burner. Gas may not be supplied even if the gas valve fails.

There may also be no flame due to the fact that the ignition does not work - there is no spark. The absence of a spark can be determined by ear, since clicks at the moment of spark formation are clearly audible. The spark is controlled by the ignition transformer, and it may have failed. Also, the lack of a spark can be caused by damage to the insulation of the electrode, which is used to ignite the gas. The presence of a spark from the electrode is determined visually.

The absence of a flame can also be caused by insufficient grounding of the heating device. This problem can be easily eliminated using a large gauge wire or a copper busbar.

Error E04

This error may appear when the flame sensor is not working correctly. False operation of this sensor can be caused by an incorrectly configured electrode, the spark from which hits this sensor. This error may also appear if the pressure in the gas line is too high.

Error E05

A problem with this code means that the coolant temperature sensor has failed. It also happens that the sensor itself is working, but its connection with the control board is broken. This may be caused by condensation or water entering the sensor connectors, which can cause oxidation and loss of contact.

Error E06

This error is also associated with incorrect operation of the water temperature sensor in the heating circuit. But this is not due to the loss of contact with the sensor or its history, but to a short circuit in the temperature sensor itself. If a short circuit occurs, then the boiler electronics perceives this event as extreme heating, due to which the protection is triggered and this error appears. The performance of the temperature sensor is determined using a multimeter. The resistance of this sensor at room temperature should not exceed 10.3 kOhm.

Error E07

This error is also associated with the Navien Ace boiler temperature sensor, but not in the heating circuit, but in the hot water supply circuit. The malfunctions of this sensor are similar to those described in the previous section. The resistance parameters that need to be taken into account when checking the DHW temperature sensor are also the same.

Error E08

This fault indicates a short circuit in the hot water sensor. If this error is present, the temperature sensor is checked using a multimeter.

Error E09

This error appears in the Navien Ace gas boiler when the turbine is not working correctly. This may be caused by oxidation on the turbine connectors, which entails a loss of voltage, or its complete absence. The turbine itself can also fail - it can rotate slowly or even jam.

Error E10

A malfunction with such a code indicates that the removal of combustion products is difficult or impossible. This may be caused by the formation of ice on the chimney, which prevents the removal of combustion products.

Error E13

This error occurs when the flow sensor is not working correctly. This is mainly observed when this sensor is short-circuited.

Error E15

A malfunction with such a code is observed when the current voltage or its frequency differs greatly from the maximum permissible values. This error can also appear if there is no grounding.

Error E16

This error indicates overheating of the heating device. This may be caused by insufficient coolant circulation.

Error E027

This code indicates that the APS sensor is not working correctly or has failed.

How to increase the time between starting and shutting down a gas boiler?

If there is a problem with frequent switching on and off (“clocking”) of a gas boiler, you can change the difference between starting and stopping the unit. This is possible using the Navien engineering menu:

1. Turn off the remote control and press two buttons “+” and “-” at the same time.
2. A number from 2 to 20 appears on the display. Usually 8 or 10.
3. Use the “+” and “-” keys to increase the delta value between start and shutdown.
4. After 5 seconds, the remote control goes out.
5. The boiler is turned off and then turned on again.

Now the gas unit will operate in a new mode.

. and without construction experience

My works for 2022.

How I set up the Navien boiler, pump and blower run-out

First, the question is, why regulate the run-out of the pump and blower, well, probably so that they work less and wear out less, as I noticed, while with the experience of the boiler in winter mode, the blower spins after stopping the boiler for another 1 minute, at this time there is cold air from the street, no longer heating up in the coaxial chimney, it intensively cools the boiler heat exchanger, which is generally detrimental to its health, and unnecessary heat loss into the atmosphere, i.e.
it is possible, without damage to the boiler, to reduce the fan run-out time, about this procedure, and at the same time, about the procedure for reducing the pump run-out (relevant in summer mode, when the boiler is turned on only to heat hot water, and turns off again), in more detail and in order: DC control mode purge, (pump and fan run-on)

The procedure for installing stages on the boiler remote control display

1 Turn off the power from the boiler remote control

2 Press the “battery” and “hot water” buttons

buttons battery and hot water

3 The display will show mode P1 for setting the pump run-on in summer mode

4 Press the “hot water” button to set the pump run-on in summer mode

Press hot water button

5 Press the + or - buttons, the display will show the numbers 10 or 40, when selecting number 10, the pump run-out will be 5 minutes, when number 40 = 20 minutes, select the option you need

Press the + or - buttons to select the coasting option

6 Press the “hot water” button to exit the pump overrun setting mode

Press hot water button

7 Click the + button

8 The display will show mode F1 to set the blower run-on in summer mode

The display will show F1 mode

9 Press the hot water button to set the blower run-on in summer mode

Press hot water button

10 Press the + or - buttons, the display will show numbers 1 or 2 or 4, when selecting number 1 the blower will run for 30 seconds, when number 2 = 1 minute, when number 4 = 2 minutes, select the option you need

11 Press the “hot water” button to exit the blower run-on setting mode

Press hot water button

12 Click the + button

13 The display will show mode P2 for setting the pump run-on in winter mode

P2 mode for setting the pump run-on in winter mode

14 Press the “hot water” button to set the pump run-on in winter mode

Press hot water button

15 Press the + or - buttons, the display will show the numbers 10 or 40, when selecting number 10, the pump run-out will be 5 minutes, when number 40 = 20 minutes, select the option you need

16 Press the “hot water” button to exit the pump overrun setting in winter mode

Press hot water button

17 Click the + button

18 The display will show mode F2 for setting the fan run-on in winter mode

F2 mode for setting the fan run-on in winter mode

19 Press the “hot water” button to set the fan run-on in winter mode

Press the "hot water" button to set the fan overrun

20 Press the + or - buttons, the display will show numbers 1 or 2 or 4, when selecting number 1, the blower will run for 30 seconds, when number 2 = 1 minute, when number 4 = 2 minutes, select the option you need

21 When all settings have been made, you must wait 10 seconds, or press the off button on the remote control once

Wait 10 seconds or turn off the boiler from the remote control

That's it, all settings are completed, you can use it

If anything, I have an engineering menu file for download from the Koreans with a crooked translation, but in it everything that I could tell on the pages, well, maybe a little more, there is just a mention that if the boiler remote control fails, then by shorting the remote control wires from the boiler itself, you can turn it on, but it will heat the heating system up to 80 degrees, but at least we won’t freeze until we buy a new remote control, or the repair team arrives with a spare remote control!

Source of the article: https://mlhouse.ru/nastroika-kotla-navien-16-2017-1.htm

How to enter the engineering menu of the Navien Ace boiler

Gas boiler Navien Ace - produced by the famous Korean company Navien. Due to its ease of use and relative cheapness, the Navien Ace boiler has gained great popularity in Russia. One of the conveniences of this boiler is that the remote control panel for the boiler is supplied standard, that is, it is in the box along with the boiler.

This control panel contains a display and keys for selecting the operating mode.

You can select the operating mode by pressing the key with the image of a radiator. The boiler has the ability to maintain the temperature according to the coolant temperature.

You can also set the operating mode of the Navien Ace boiler based on the air temperature in the room where the control panel is installed. This opportunity is available thanks to the built-in thermostat in the control panel.

When the set temperature is reached, the Navien Ace boiler will turn off and wait for it to drop by 10 degrees from the set temperature. The temperature range is set by the manufacturer, and you can change it by going to the engineering menu of the Navien Ace boiler. In this menu you can change the factory settings of the boiler operating mode.

To enter the engineering menu of the Navien Ace boiler, you must press the + and - keys.

In this menu we will see the difference in temperature between turning on and off the boiler.

By pressing the + and - keys you can increase or decrease it. The most optimal value is 10 C, this will reduce the operating time of the boiler, and therefore the amount of gas consumed.

To save the boiler settings, you must press the boiler switch off button.

To go to the settings of the pump and fan operating modes, you must press the key with the image of the radiator and mixer.

In this menu on the display you will see the following values: P1 - summer pump run-on, F1 - summer fan run-on, P2 - winter pump run-on, F2 - winter fan run-on.

Run-on is the time that the pump and fan operate after the burner is turned off. To configure all parameters, you need to select the desired mode and click on the mixer.

Pump time values: P- 40 (20 minutes of operation), 10 (5 minutes of operation). Fan time values: F- 4(2 minutes of operation), 2(1 minute of operation), 1(30 seconds of operation). To save the settings, you must press the mixer key.

Please note: the service menu of the Ace boiler is intended only for specialists. Try not to use this menu to avoid malfunctions of the boiler.

If you have any questions, call us or write in the chat on this page. We'll be happy to help.

DIY house

The boiler heats up, life goes on, but something told me that everything is not so rosy, first of all, a mistake was found among many buyers of gas boilers, they all buy with a reserve of power “just in case,” well, I, like everyone else, I took it with a reserve, with a reserve for hot water supply and frosts, i.e. It turned out that in warm weather outside, the Navien boiler continues to cycle, which is very unfortunate for it, and can lead to breakdown, first of all, there may be a breakdown of the ignition system, since it constantly lights the boiler, and most often wears out, this is not for me I want to.

As an inquisitive researcher, with a stopwatch in my hands, I studied the cycles of the boiler in different modes of its operation, in warm weather, in cold weather, and decided to test the capabilities of the boiler at work depending on the temperature in the room, for this I selected the room mode in the boiler settings.

At first everything was happy, the boiler obediently stood up, waiting for the set temperature to drop, but the joy was short-lived, cold was already creeping across the floor (the heat from the radiators, which cut off the cold air from my many windows, disappeared, and the house became not very comfortable, in the upper part the room where the remote control for the boiler, in which the temperature sensor is located, hung. It was in a warmer zone, we immediately understood that this was not suitable for us, at first there were thoughts of hanging the remote control down, closer to the floor, but, firstly, this is inconvenient for control, secondly, it can be ruined by domestic cats, thirdly, the boiler may not turn off at all, trying to catch up with the temperature below, when it is already hot in the middle part of the room in height.

The room temperature test did not pass and was not suitable for me, at the same time I remembered the person who connected the gas, who advised that the boiler should not be turned on in this mode.

Time passed, but the cycles did not give me peace, and one day it occurred to me, while regularly observing the boiler, that the hysteresis (delta) in the turn-on-switch-off segment of the gas boiler was probably too small, and I would like the boiler to drive the coolant longer to a higher level. low CO temperature, but it was unclear how to do this, I certainly know how to program, but programming languages ​​for this boiler are inappropriate, and I don’t have equipment to connect to the “brains” of the boiler, and one day, purely by chance, I came across one well-known forum for a person who knows how to do this, and with the help of only one remote control, by entering the engineering menu of the Navien boiler!

This is literally what needs to be done. to change the delta between boiler start-stop.

1. With the Navien boiler remote control turned off, press the + and - buttons for 5 seconds

2. The number 8 or 9 or 10 will appear on the remote control display (for me)

3. Again, use the + or - buttons to change the value (this is delta) in the range from 2 to 20 (I set it to 12)

4. We wait 5 seconds, after which the boiler remote control goes out

5. Turn off the boiler by removing the plug from the socket for at least 10 seconds

6. Temperature difference value saved

Having done all this, I immediately realized the difference, the intervals between starts and stops of the boiler increased, although it raised the delta by only 2 degrees!, a useful thing, the engineering menu of the Navien boiler!

But, as it turned out, this is not all that the engineering menu of the Navien boiler can do; it turns out that the run-on time of the pump and blower after stopping the boiler can also be set!

How to reduce the power of a gas boiler: ways to reduce

Hello, dear readers. Many owners are interested in how to reduce the power of a gas boiler? After all, it begins to consume a lot of fuel, strong noises and clicks appear in it. It feels like it might explode. To resolve the issue, there are general recommendations and points for certain brands and models.

A gas boiler is a necessary device in the house. It handles heating tasks and solves the hot water dilemma (if the model has two circuits). However, there are often cases when the power of the equipment goes off scale, which is fraught with significant waste of fuel and strong heating of the device. Therefore, the question arises of reducing these parameters.

Classic methods

To reduce the power of equipment, you need to apply these methods (one or both):

1. Burner power decreases. Parameters are achieved at which the automatic system sets the stable operation of the device with a connected heating system.
2. Increasing the maximum power parameters of the heating circuit. The process comes down to installing additional radiators or replacing existing ones with more powerful analogues.

Both options can be used. To do this, the difference between the power of the heating circuit and the device itself is reduced: radiators are changed or more powerful units are installed. The existing difference can be compensated by adjusting the power of the boiler itself.

Method No. 2 is less financially profitable, but if there is an urgent need, it is inevitable. Especially when there are radiators that do not have thermal power reserves.

And in cold weather, to maintain optimal temperature data in the room, it is necessary to send water with readings of more than 75 degrees to the radiators. In this situation, organic dust particles burn on the radiators, and a foul smell is formed in the room.

The boiler also has a negative impact - its polymer, plastic and rubber components deteriorate.

It is more effective to reduce the power of boilers of this brand by reducing the fuel supply to the burner. To do this, reconfigure the gas valve.

The Proterm Cheetah model is taken as an example.

A Honeywell valve is used here. Externally, it is a yellow connector with wires. It is mounted on a stepper motor, which helps change its settings.

The specified electric motor is controlled through the control panel: you need to go to the service menu. Access to it appears after entering the code.

The procedure is as follows:

1. Press and hold the “Mode” button for 6-7 seconds. The display will show the number 0.
2. Use the + or – buttons to enter the number 35. This is the code. Press the indicated button again.
3. When the first line of the menu with 0 signs appears on the screen, also using the + or – buttons, enter the number with the required line number: d.**.
4. Changing parameters. “Mode” is pressed again. This is a transition from line numbering ** to the indicators themselves. The “=” symbol and the power parameter are displayed in turn on the screen. Change the values ​​using + or -. After three seconds, the new setting is automatically confirmed.
5. Return the display to its original state: press “Mode” for three seconds. After 15 minutes the screen will return to functional mode.

Navien devices

To reduce the power of many Navien models, just use the remote control and visit the engineering menu.

Procedure:

1. The remote control is turned off. Press + and – for 5 seconds. This is how the regime is established.

1. The numbers displayed on the remote control panel are 8,9 or 10. They change to values ​​in the range 2 -20. Most often the figure is 12 or 13.
2. After 5 seconds the remote control goes out. The boiler is disconnected from the network for 10 seconds.

Baxi products

If you have a small apartment, then for optimal power of the Baxi boiler, the F08 and F10 indicators are set to a minimum.

The modulation interval of a 24 kW device starts at 40% of the maximum power. Then the minimum parameter for its operation is 9 kW. This is enough to heat an area of ​​up to 80 sq.m.

You can also connect a room thermostat to many models. The boiler will start only by its signal when the temperature in the room drops below the set values.

Thanks to programmable thermostats, you can flexibly adjust different modes throughout the day. Even if you reduce the indicator by 1 degree every day, you can save up to 4-5% of fuel per year.

Vaillant technology

Manufacturers of Vailant boilers offer the use of heat pumps in order to optimize the power of their equipment. These devices allow you to generate 2.3 - 4.8 kW of thermal energy at a cost of 1 kW of electricity.

For example, thanks to a pump with a parameter of 15 kW, about 45,000 cubic meters of gas are saved per year. Also, the pump cools the room well in the summer, which eliminates the need for owners to purchase an air conditioner.

Immergas

Immergas boilers can be brought to a suitable power using a gas valve. The setup goes like this:

1. The DHW switch is placed in the position you need.
2. The hot water valve opens.
3. The required power is adjusted using a controlled nut on the valve.
4. Thermal power is adjustable. To lower, turn the nut counterclockwise.

There is a second method: the nut is static, and a plastic valve screw is used. In this case, the valve coil is disconnected from the power supply. To reduce the parameters, the screw itself rotates in the same direction as the nut. The coil is then reconnected to the network.

https://www.youtube.com/watch?v=pFLCsDoMDdg

The minimum parameter should not be inferior to the value reflected in the device’s passport.

The boilers also have software settings, but this is the prerogative of only models from the Zeus line.

Ferroli

Reducing power in boilers of this brand is easy and convenient. For example, we took the Ferroli Domina F18 device.

A small display shows the current mode and temperature data for hot water and heating.

The pressure gauge on the control console reflects the pressure in the heating circuit.

To change the temperature of the circuits, 4 buttons are used, and the mode changes: from Winter to Summer and vice versa. To do this, press the “Reset” button.

To reduce power, select the “Eco” mode. This way the boiler does not waste energy on preheating the water, which saves fuel. However, after opening the valve, you need to wait 2-5 seconds until the water heats up to the required temperature.

Source: https://ballony.com.ua/umenshit-moshhnost-gazovogo-kotla.html